The purpose of the present invention is to provide a circular polarizing plate for organic electroluminescence provided with an adhesive layer, in which film separation and unevenness of reflectance over time in an organic electroluminescence display device are prevented to a superior degree. Another purpose of the present invention is to provide an organic electroluminescence display device that is equipped with the circular polarizing plate for organic electroluminescence provided with an adhesive layer. This circular polarizing plate for organic electroluminescence provided with an adhesive layer is one in which a polarizing plate protective film, a polarizer, a lambda/4 phase difference film, and an adhesive layer are laminated in this order, and the angle between the slow axis of the lambda/4 phase difference film and the absorption axis of the polarizer is 45°, and the circular polarizing plate for organic electroluminescence provided with an adhesive layer is characterized in that the lambda/4 phase d
